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You are here:Home » Antibodies » Abs to Epitope Tags » Anti -Glutathione S-Transferase (GST)

Anti -Glutathione S-Transferase (GST)

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Specifications

Clone Host Grade Applications
Monoclonal Mouse Ascites E B
Expression of genes in E. coli or yeast or baculovirus offers a convenient system to produce large amounts of recombinant proteins that may otherwise be difficult to isolate from natural cells and tissues. Very often antibodies to these newly identified proteins are not available to study its biochemical properties, monitor protein expression, and purification. In order to circumvent this problem, short pieces of well-defined peptides (Poly-His, Flag-epitope or c-myc epitope or HA-tag) or small proteins (bacterial GST, MBP, Thioredoxin, b-Galactosidase, VSV-Glycoprotein etc) are often cloned along with the target gene. Proteins are expressed as fusion proteins. Antibodies to these fusion-tags are already available to monitor fusion protein expression and purification. Therefore, fusion-tags serve as universal tags much like secondary antibodies. Many tags have their own characteristics. Poly-His-fusion proteins (6 x His) can bind to Nickel-Sepharose or Nickel-HRP. GST-fusion proteins can bind to glutathione-Sepharose. Therefore, a high degree of purification of fusion protein can be achieved in just one affinity purification step. Purity of fusion proteins can be followed by Tag-antibodies. Very often, fusion proteins are directly injected into animals to generate antibodies. Some fusion tags can be removed later by treatment with enzymes to generate tag-free recombinant proteins.
Catalog #G8135-03G
ApplicationsThis antibodies have been tested by ELISA (suggested dilution 1K-10K) using 50-100 ng/well GST-coated ELISA plates. It recognizes both native GST or GST fusion proteins in Western blots (suggested dilution 1K). Actual dilution of antibody will vary depending upon the type of technique used to detect primary antibody such calorimetric or chemiluminescence substrates. The nature and concentration of GST or GST fusion proteins may also affect antibody concentration.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage, store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone TypeMonoclonal
IsotypeIgM
Clone No7C32
HostMouse
ConcentrationAs reported
FormSupplied as a lyophilized powder from PBS, 0.05% sodium azide.
PurityAscites
ImmunogenBacterial GST (Schistosoma japonicum, ~27kD), expressed in E. coli.
SpecificityRecognizes both native GST or GST fusion proteins in Western Blots.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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